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NEET2003PhysicsDual Nature of MatterActual

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 kV , its kinetic energy will be

Options

  1. A1840 keV
  2. B1 / 1840 keV
  3. C1 keV
  4. D920 keV .

Correct answer

C. 1 keV

Step-by-step solution

The charge on a proton is equal to e , the electronic charge. The potential difference is V=1 kV . Hence the kinetic energy of the proton is E=1 keV .

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